| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.60 | 6.37 | 0.23 |
| Feb | 5.11 | 4.96 | 0.15 |
| Mar | 5.55 | 5.45 | 0.10 |
| Apr | 4.49 | 4.34 | 0.15 |
| May | 3.13 | 3.08 | 0.05 |
| Jun | 2.07 | 2.08 | -0.01 |
| Jul | 0.44 | 0.43 | 0.01 |
| Aug | 0.55 | 0.53 | 0.02 |
| Sep | 1.78 | 1.76 | 0.02 |
| Oct | 4.16 | 4.13 | 0.03 |
| Nov | 6.83 | 6.75 | 0.08 |
| Dec | 7.74 | 7.42 | 0.32 |
48.45 | 47.30 | 1.15 |